CN111336155A - Piston rod assembly - Google Patents
Piston rod assembly Download PDFInfo
- Publication number
- CN111336155A CN111336155A CN202010280174.3A CN202010280174A CN111336155A CN 111336155 A CN111336155 A CN 111336155A CN 202010280174 A CN202010280174 A CN 202010280174A CN 111336155 A CN111336155 A CN 111336155A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- sealing ring
- elastic sealing
- seat body
- truncated cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 206010017367 Frequent bowel movements Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a piston rod assembly, which comprises a piston rod and a piston assembly arranged at the front end of the piston rod, wherein the piston assembly comprises a front seat body, an elastic sealing ring, a plurality of connecting pieces, a rear seat body, a circular truncated cone body and a spring body, the front end of the rear seat body is provided with the circular truncated cone body, the circular truncated cone body is sleeved with the elastic sealing ring, the front end of the elastic sealing ring is connected with the front seat body in a sliding mode through the connecting pieces, the front end of the circular truncated cone body is provided with a shaft body, the front end of the shaft body penetrates through the front seat body, the front end of the shaft body is provided with a baffle body, the spring body is arranged on the shaft body between the baffle body and the front seat body, and two ends of the spring body are respectively fixedly connected with the baffle body and the front seat.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of air pressure, in particular to the technical field of a piston rod assembly.
[ background of the invention ]
The piston rod is mostly applied to an oil cylinder and a cylinder motion execution component, is a motion component with frequent motion and high technical requirement, and is a single-action cylinder in reality, wherein only one end of the single-action cylinder is provided with the piston rod, air is supplied from one side of the piston and is gathered to generate air pressure, the air pressure pushes the piston to generate thrust to extend out and return by virtue of a spring or self weight, and a sealing ring on the piston is always in close contact with the wall of the cylinder when the piston at one end of the piston rod reciprocates, so that the sealing ring is worn out quickly, the service life is.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a piston rod assembly which can prolong the service life and reduce the return resistance.
In order to achieve the purpose, the invention provides a piston rod assembly, which comprises a piston rod and a piston assembly arranged at the front end of the piston rod, wherein the piston assembly comprises a front seat body, an elastic sealing ring, a plurality of connecting pieces, a rear seat body, a circular truncated cone body and a spring body, the front end of the rear seat body is provided with the circular truncated cone body, the circular truncated cone body is sleeved with the elastic sealing ring, the front end of the elastic sealing ring is slidably connected with the front seat body through the connecting pieces, the front end of the circular truncated cone body is provided with a shaft body, the front end of the shaft body penetrates through the front seat body, the front end of the shaft body is provided with a baffle body, the spring body is arranged on the shaft body between the baffle body and the front seat body, and two ends of the spring.
Preferably, a reinforcing member is provided in the piston rod.
Preferably, the cross section of the reinforcing member is i-shaped.
Preferably, the inner diameter of the rear end of the elastic sealing ring is smaller than the diameter of the rear end of the truncated cone, and the inner diameter of the front end of the elastic sealing ring is equal to the diameter of the front end of the truncated cone.
Preferably, the rear end of the front seat body is provided with a groove into which the front end of the truncated cone body can be inserted.
Preferably, the connecting piece comprises a connecting rod and a blocking body, the rear end of the connecting rod is fixedly connected with the elastic sealing ring, a sliding slot hole corresponding to the connecting rod is formed in the front seat body, and the front end of the connecting rod penetrates through the corresponding sliding slot hole and is provided with the blocking body.
The invention has the beneficial effects that: according to the invention, the front end of the rear seat body is provided with the round table body, the round table body is sleeved with the elastic sealing ring, the front end of the elastic sealing ring is connected with the front seat body in a sliding manner through the connecting piece, the front end of the round table body is provided with the shaft body of which the front end penetrates through the front seat body, the front end of the shaft body is provided with the baffle body, the shaft body between the baffle body and the front seat body is provided with the spring body, and two ends of the spring body are respectively fixedly connected with the baffle body and the front seat body.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic view of a piston rod assembly of the present invention.
In the figure: 1-piston rod, 2-piston component, 3-reinforcing element, 4-sliding slot hole, 21-front seat body, 22-elastic sealing ring, 23-connecting element, 24-rear seat body, 25-circular truncated cone body, 26-spring body, 27-shaft body, 28-baffle body, 29-groove, 231-connecting rod and 232-baffle body.
[ detailed description ] embodiments
Referring to fig. 1, the piston rod assembly of the present invention includes a piston rod 1 and a piston assembly 2 disposed on a front end of the piston rod 1, wherein the piston assembly 2 includes a front seat 21, an elastic sealing ring 22, a plurality of connecting members 23, a rear seat 24, a circular truncated cone 25 and a spring body 26, the front end of the rear seat 24 is provided with the circular truncated cone 25, the circular truncated cone 25 is sleeved with the elastic sealing ring 22, the front end of the elastic sealing ring 22 is slidably connected to the front seat 21 through the connecting members 23, the front end of the circular truncated cone 25 is provided with a shaft body 27 having a front end penetrating through the front seat 21, the front end of the shaft body 27 is provided with a stopper 28, the shaft body 27 between the stopper 28 and the front seat 21 is provided with the spring body 26, two ends of the spring body 26 are respectively fixedly connected to the stopper 28 and the front seat 21, a reinforcement 3 is disposed in the piston rod 1, and a cross section of the reinforcement 3 is, the inner diameter of the rear end of the elastic sealing ring 22 is smaller than the diameter of the rear end of the truncated cone 25, the inner diameter of the front end of the elastic sealing ring 22 is equal to the diameter of the front end of the truncated cone 25, the rear end of the front seat body 21 is provided with a groove 29 into which the front end of the truncated cone 25 can be inserted, the connecting piece 23 comprises a connecting rod 231 and a blocking body 232, the rear end of the connecting rod 231 is fixedly connected with the elastic sealing ring 22, the front seat body 21 is provided with a sliding slot hole 4 corresponding to the connecting rod 231, and the front end of the connecting rod 231 penetrates through the corresponding sliding slot hole 4 and is provided with the blocking body 232.
The working process of the invention is as follows:
in the working process of the piston rod assembly, the front seat body 21 moves backwards under the action of air pressure and stretches the spring body 26, the front seat body 21 drives the elastic sealing ring 22 to move backwards, the elastic sealing ring 22 is expanded by the circular truncated cone 25, so that the elastic sealing ring 22 is in closer contact with the cylinder wall, when the front end of the circular truncated cone 25 is in contact with the front end of the groove 29, the front seat body 21 drives the rear seat body 24 to move backwards through the circular truncated cone 25, and the rear seat body 24 drives the piston rod 1 to extend backwards. When the piston rod 1 returns, the front seat body 21 moves forward under the action of the spring body 26, the front seat body 21 drives the elastic sealing ring 22 to move forward through the connecting piece 23, the elastic sealing ring 22 is not expanded by the circular truncated cone 25 and returns to a normal state, and the acting force of the elastic sealing ring 22 on the cylinder wall is reduced.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. A piston rod assembly characterized by: comprises a piston rod (1) and a piston component (2) arranged on the front end of the piston rod (1), the piston assembly (2) comprises a front seat body (21), an elastic sealing ring (22), a plurality of connecting pieces (23), a rear seat body (24), a circular truncated cone body (25) and a spring body (26), the front end of the rear seat body (24) is provided with a round table body (25), an elastic sealing ring (22) is sleeved on the round table body (25), the front end of the elastic sealing ring (22) is connected with the front seat body (21) in a sliding way through a connecting piece (23), the front end of the round table body (25) is provided with a shaft body (27) the front end of which penetrates through the front seat body (21), a blocking body (28) is arranged at the front end of the shaft body (27), a spring body (26) is arranged on the shaft body (27) between the blocking body (28) and the front seat body (21), two ends of the spring body (26) are respectively fixedly connected with the blocking body (28) and the front seat body (21).
2. A piston rod assembly as set forth in claim 1 wherein: a reinforcing piece (3) is arranged in the piston rod (1).
3. A piston rod assembly as set forth in claim 1 wherein: the cross section of the reinforcing piece (3) is I-shaped.
4. A piston rod assembly as set forth in claim 1 wherein: the inner diameter of the rear end of the elastic sealing ring (22) is smaller than the diameter of the rear end of the truncated cone body (25), and the inner diameter of the front end of the elastic sealing ring (22) is equal to the diameter of the front end of the truncated cone body (25).
5. A piston rod assembly as set forth in claim 1 wherein: the rear end of the front seat body (21) is provided with a groove (29) for the front end of the round table body (25) to insert.
6. A piston rod assembly according to any one of claims 1 to 5, wherein: the connecting piece (23) comprises a connecting rod (231) and a blocking body (232), the rear end of the connecting rod (231) is fixedly connected with the elastic sealing ring (22), a sliding groove hole (4) corresponding to the connecting rod (231) is formed in the front seat body (21), and the front end of the connecting rod (231) penetrates through the corresponding sliding groove hole (4) and is provided with the blocking body (232).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010280174.3A CN111336155A (en) | 2020-04-10 | 2020-04-10 | Piston rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010280174.3A CN111336155A (en) | 2020-04-10 | 2020-04-10 | Piston rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111336155A true CN111336155A (en) | 2020-06-26 |
Family
ID=71182742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010280174.3A Pending CN111336155A (en) | 2020-04-10 | 2020-04-10 | Piston rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111336155A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256903U (en) * | 1988-10-18 | 1990-04-24 | ||
| DE29723094U1 (en) * | 1997-02-20 | 1998-04-02 | Stabilus Gmbh, 56070 Koblenz | Piston-cylinder unit with a closing valve |
| CN104329458A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Sealing piston device and energy accumulator using sealing piston device |
| CN212225660U (en) * | 2020-04-10 | 2020-12-25 | 嘉兴乐创紧固件科技有限公司 | Piston rod assembly |
-
2020
- 2020-04-10 CN CN202010280174.3A patent/CN111336155A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256903U (en) * | 1988-10-18 | 1990-04-24 | ||
| DE29723094U1 (en) * | 1997-02-20 | 1998-04-02 | Stabilus Gmbh, 56070 Koblenz | Piston-cylinder unit with a closing valve |
| CN104329458A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Sealing piston device and energy accumulator using sealing piston device |
| CN212225660U (en) * | 2020-04-10 | 2020-12-25 | 嘉兴乐创紧固件科技有限公司 | Piston rod assembly |
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